Rotary internal-combustion engine.



N. B. DOANE.

ROTARY INTERNAL COMBUSTION ENGINE.

APPLICATloN FILED FEB. 7. 1917.

L25565 Patented Feb. 12,1918.

WITNESSES 1 f J I y 'yfel/mowm M @A I l,

atented Feb. 12, 1918.

HEETSj'SHEEl' 2.

NALC

ROTARY INTER APPLlcArlo L,

. DOANE.

ONIBUSTION ENGINE.

F LED FEB. 7. |917.

N. B. DOANE.

ROTARY INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB. 7. 1912.

1,255,865. Patented Feb.12,1918.

3 SHEETS*SHEEI 3.

A TTOHNEVS menace.

' with the -use of allvalv'es, as in combustion- Fig. 3;

NEUER. DOME, 0F DE RIDJDEJBQLOUISIANA.,

Specication of Letters Patent.

ROTY INTNAIi-COMBUSTION ENGINE."

Patenten nen. is, wie.,

l Application nled February 7, 1917. Serial No. M7064.

To all whom z'jz may concern:

Be it'lmown that I NEIL B. DoANE,-a citizen of the United gtates, and a resident of De Ridder, in the parish' of Beauregard and State cf Louisiana, have invented a certain new and useful Improvement in Rotary Internal-Combustion Engines, of which the following isla speciiication.

My present invention relates generally to internal combustionengines, and more particularly to an internal combustion engine of the rotarytype, my object being to provide a simple eilective construction, doing away engines of the reciprocatngtype, and a construction whereby continuous power movements may be had, applied to the power shaft in its rotary plane of movement, inthe irst instance, whereby to bring about unform Hexible power application.

Other objects rresiding for the most part in the details of construction of my improved engine, will be plain from the following description, wherein reference is made to the accompanying drawings tormpart of this specication, and inv lng a which Figure 1 is a vertical longitudinal section.

taken in a. plane through the compression rotor:

Fig.l2 is a similar view through the cylinder, 4taken substantially on line 2 2 of Fig. 3 is a vertical cross section taken substantially on line 3-3 of Fig. l;

Fig. 4 is a central vertical longitudinal section taken substantially online 4 4. of Fi .3'

Fig is a sectional view taken substantially online 5 5 of Fig?. 1;

Fig.' 6 is a sectional view taken substam.

tially on line 6-6 of Fig. 5;

Fig. 7 is a detail perspective view of one of the vrotor blades removed;

Y Fig. 8 is a similar view otono ofthe heads of the blades, and

Fig. 9 is a similarl view of one of the stems v of theblade.

Referring now to these figures, and partic-v ularly to Figs. 1 and 3, my improvements are preferably mounted within acylindrical water jacket 10, consisting of opposing side sections having danges 11 around their inner ends, disposed against the outer side faces of a partition plate 12, extending through the said casing at its median point,

and to which the side sections of the casing are connected by bolts 13 passing through l the flanges 11 and through the partition plate 12 in a series adjacent and around the outer peripheral edge.

Within the casing 10 which, as above stated, forms a water jacliet, and upon relatively opposite sides of the partition plate 12, are compression and explosion cylinders 14 and 15 respectively, having inner anges 16 and 17 secured to the partition plate 12 by bolts 18, the said partition plate thus orming the inner wall of each of said cyliners.

The cylinders 14 and 15 are also providedl wlth outer anges 19 and 20, secured to their' respective outer side plates 21 and 22, by bolts 23, the said side plates 21 and 22 having central bosses 24 and' outwardly projecting hub portions 25, the former ofl which provide for inner cavities 26 supporting antifriction bearings 27. Y The hub portions 25 of the cylinder side plates are eccentric thereto, and with respect to the casing l0, to receive portionsot the power shaft 28, the intermediate enlarged portion 29 of which extends from the inner surface of the side plate 21 of cylinder 14 to the inner surface of the side plate 22 of cylinder 15, and continuously through an enlarged opening of the'partition plate 12,.

the shaft 28 being mounted in the antifriction bearing 27.

The shaft 28 'being thus eccentric to thevv slots 32, with hores 33, as seen in Fig. 3, ex-

tending through the central portion thereoif,

and through the enlarged portion 29 of the power'shaft andconnecting the inner ends of diametrically opposed slots 32, the com pression rotor being further provided with 1,` is provided with a plurality of radial a series of cavities 34, equal in number to v Vthe slots 32 and disposed one in advance ot each ot said slots, as seen by reference 'to' Fig. 1, each cavity 34A 'communicating through the inner slde face of the rotor and 4with the adjacent side face of the partition and 36 of the rotors' 30 and 31, is a blade 39 having a stem 40,1the said stems projectinner surfaces of the cy inders 1 4 and 15 at ing angularly therethrough above-the shaft' ing inwardly, with the inner ends of diametrically opposing blades in spaced relation within the openings 33 and 42 through the enlarged` shaft ortion 29 of the compression and explosion rotors respectively,

the said inner ends `of the stems having be-` tween them compression-springs 4 3 as best seen 1n Fig. 3, the functions of which are to Velastically hold thel blades in spaced apart relation and, tend to maintain their outer endsk in uniform slidin contact with the all times.

vEach of the blades 39, as seen inFigs. 7

48, and 9 consists of a pair of plates 44 of similar construction, and disposed in` face to vface relation, each plate having an angular" flange at one side opposin the adjacent edge of the Vother plate, the' anges 45 and' opposing plate edges having recesses 46 reg-V istering with one another and coperating to.

form grooves for the reception of springs 47 'for shifting the plates laterally with respect to one lanother in order to hold their flanged `side edges in uniform sliding engagement with the inner surfacesof the side Walls 21 `and 22 and the side faces of the partition plate 12, the plates 44 being` cutaway at their lower ends to receive the rectangular heads 48 at the outerends ofthe stems 40 of the blades before mentioned'.

Extending into the cylinder 15, Vat the upper portion thereof and at one side of its vertical axis, is a spark plug 49, and extend#- `ing into the cylinder 14 at a somewhat similar point, is a fuel intake 50, the explosion cylinder 15 communicating at its lower portionV upon vthe relatively opposite side of its vertical axis, with exhaust ports 51` in turn communicating with an exhaust .manifold 52, as seen in Figs. 1, 4, and 6.

Referring now to Figs. 3, 4,and`5, it will be noted that the partition 'plateg12 is provided with a transverse channel 53, extend\ 30, and with laterally extending openings. at the upper end of the 'char 1nel, .,com-fv 55being in the circumferential plane of the' .side openings 35 and 38 of the compression andexplosion'` rotors 30 and 31, to provide for registry ofv the latter' therewith in the rotation of said-rotor.

Thus, in operation as each of the blades 39 of the compression rotor`30, as seen, in Fig. 1, pass the fuel intake v50, fuel will be sucked in in advance `of the next succeeding blade, and during .further rotation of the compression rotor, the' vCharges thus sucked in'will be compressedin advance of each blade 39 a-s the latter approaches the relatively opposite side of the cylinder 14 adjacent the abutment formed lasy before described, the charges being compressed within the cavities 34, so that upon registry of the openings 35 of each cavity with the lower opening 54 of the transfer channel 53, the compressed charge will pass through the channel and through its openings 55 and the openings 38 of one of the cavities 37 of the explosion rotor 31, immediately in the rear of one of its blades 39, when the rotor is in the psition shown in Fig. 6, the spark plug beingtimed tol ignite the charge so transformed to the explosion and within the -combustion space 56, as seen in Fig. 6, to deliver the spark for ignition immediately after the respective openings 38 have passed out of registry with the`openings 55 of the transfer channel. Thus it is obvious that an explosion will occur, after the engine 'is once'started, as each of the blades 39 of the explosion rotor pass the spark plug, thus producing four explosions to each complete revolution of the vpower shaft. This provides for a continu-l ous uniform iexible power application, and the means employed in the construction of the engine as previously described, provide for the elimination of all valves and other complicated parts of like nature requiring almost constant attendance in reciprocating en nes. Y l

t is obvious that after. explosions, the gases inthe rear of each of the blades 39 of the explosion piston, expanding as they do for a considerable -proportion ofthe rotation of the explosion rotor, will be liberated andexhausted through the exhaust port 51,

lto the manifold 52, as soon as the precedin .portion thereof.

. It is further' obvious that in use I may .employ various additional wellknown devvices in connection with my u improved motor as thus descrlbed, for instance suitable lubricating means, or a system either of gravity or force feed lubrication, as well as well known clrculatng and cooling means incassa for the 'water of the casing 10 forming the water jacket, and it is to be understood that I have refrained from illustration or minute description ofsuch well known devices iny connection with explosive engines, with the sole purpose in view Iof avoiding unnecessary complications and obscuriiig the real invention herein set forth.

l may also employ vrings and 61 at the relatively opposite sides of the rotors 30 and 3l respectively, as shown in Figs. 3 and 5, such rings being suitably disposed to engage the adjacent surfaces of the walls`l2,

2l, and 22 in order to preventpleakage of pressure and to hold the charges.

l claim 1. An engine ofthe character described, comprising a compression cylinder having intake means, anexplosion cylinder having explosion and exhaust means, said cylinders.

being disposed inflaterally spaced relation and' open at. their inner side, a partition plate secured between and connecting said cylinders, compression and explosion rotors .respectively within and eccentric. to said cylinders, and having radially movable blades, the compression rotor havingV a peripheral .cavity in advance of each ofV its blades, and openingsfrom each cavity through its inner face, the explosion cylinder having a' peripheral cavity in the rear of each of its blades, and openings from each cavity through its inner face, and the partition plate having charge transferring "means iorperiodical communication with the said openings and cavities of the com-- pression and explosion rotors, during rotation ot. the latter. 4

'2. An engine ofthe character described comprising a compression cylinder having vintake means, an lexplosion cylinder having explosion and exhaustk means, said cylinders being disposed in laterally spaced relation and open at their inner sides,.a partition plate secured between and connecting said cylinders, compression and explosion rotors respectively within` and eccentric to, said cylinders, and having radially movable blades, the compression `rotor having a pcripheral cavity in advance oeach' of itsl p, blades and openings tromjeach cavity through its inner face,the explosion cylin-` der' having a peripheral cavity inthe rearv of each oi itsblades, and openings trom each cavity through its inner'- itace, and the plate having a transferring channel and openings at the opposite ends of said chan? nel leading respectively through lopposite side faces thereof for registry with .the open-f ings of the compression and explosion rotors, during rotation of the latter..

the discharging and receiving openings, the

said partition platel having charge transferring means for periodical communication with the discharging openings of the compression rotor and the receiving openings oi' the explosion rotor.

4. An engine of the character described comprising' a compression cylinder having intake means, an explosion cylinder having explosion and exhaust means, said cylinders being disposed in laterally spaced relation and open at their inner sides, a partition `plate secured between and connecting said cylinders, compression and explosion rotors respectively within and eccentric to said fcylinders, said compression and explosion rotors respectively having charge discharging and receiving openings communicating between their inner and peripheral `faces, and' radial spring actuated blades carried4 by said compression and explosion rotors respectively in the rear, and in advance, ont the discharging and receiving openings, the partition plate having a transferring 'channel and openings at the opposite ends of said channel leading respectively through Opposite side faces .thereof for registry with the discharging openings of the compression Arotor and the receiving openings of the erplosion rotor.

5.' ln an engine of the character described, a lslotted rotor having inner diametrical openings connecting the inner ends ot its slots, blades slidable in the said slots, `and stems mounted in the said inner'dametricai opennga'and springs between the opposing `ends of the 4said stems, the blades having recesses at their inner ends, and said stems havin heads at their outer ends removably ting the recesses ot the blades.

B. DANE..

-Witnessem @nantes W. Donna, -d'nssn G. Mo 

